A novel energy-efficient digital-to-analog converter (DAC) switching technique applicable to single-ended successive approximation register (SAR) analog-to-digital converter (ADC) is presented. The proposed DAC switching technique facilitates the ADC to digitize an input signal in the entire amplitude range of [0, $V_{\mathit{ref}}$] using only a single reference voltage of $\frac{V_{\mathit{ref}}}{2}$. The proposed DAC switching technique achieves 92.3% savings in switching energy as compared to the traditional DAC switching method in single-ended SAR ADCs. The performance of the proposed DAC switching technique and its comparison with previous reported works have been validated through behavioral simulations.

提出了一种适用于单端逐次逼近寄存器（SAR）模数转换器（ADC）的新型节能数模转换器（DAC）切换技术。拟议的DAC开关技术有助于ADC在[0，$V_{\mathit{参考}}$]仅使用一个参考电压 $\frac{V_{\mathit{参考}}}{2}$。与单端SAR ADC中的传统DAC切换方法相比，拟议的DAC切换技术可节省92.3％的切换能量。拟议的DAC开关技术的性能及其与以前报道的工作的比较已通过行为仿真得到了验证。